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[releases.git] / x86 / events / intel / uncore_discovery.h
1 /* SPDX-License-Identifier: GPL-2.0-only */
2
3 /* Generic device ID of a discovery table device */
4 #define UNCORE_DISCOVERY_TABLE_DEVICE           0x09a7
5 /* Capability ID for a discovery table device */
6 #define UNCORE_EXT_CAP_ID_DISCOVERY             0x23
7 /* First DVSEC offset */
8 #define UNCORE_DISCOVERY_DVSEC_OFFSET           0x8
9 /* Mask of the supported discovery entry type */
10 #define UNCORE_DISCOVERY_DVSEC_ID_MASK          0xffff
11 /* PMON discovery entry type ID */
12 #define UNCORE_DISCOVERY_DVSEC_ID_PMON          0x1
13 /* Second DVSEC offset */
14 #define UNCORE_DISCOVERY_DVSEC2_OFFSET          0xc
15 /* Mask of the discovery table BAR offset */
16 #define UNCORE_DISCOVERY_DVSEC2_BIR_MASK        0x7
17 /* Discovery table BAR base offset */
18 #define UNCORE_DISCOVERY_BIR_BASE               0x10
19 /* Discovery table BAR step */
20 #define UNCORE_DISCOVERY_BIR_STEP               0x4
21 /* Global discovery table size */
22 #define UNCORE_DISCOVERY_GLOBAL_MAP_SIZE        0x20
23
24 #define UNCORE_DISCOVERY_PCI_DOMAIN(data)       ((data >> 28) & 0x7)
25 #define UNCORE_DISCOVERY_PCI_BUS(data)          ((data >> 20) & 0xff)
26 #define UNCORE_DISCOVERY_PCI_DEVFN(data)        ((data >> 12) & 0xff)
27 #define UNCORE_DISCOVERY_PCI_BOX_CTRL(data)     (data & 0xfff)
28
29
30 #define uncore_discovery_invalid_unit(unit)                     \
31         (!unit.table1 || !unit.ctl || \
32          unit.table1 == -1ULL || unit.ctl == -1ULL ||   \
33          unit.table3 == -1ULL)
34
35 #define GENERIC_PMON_CTL_EV_SEL_MASK    0x000000ff
36 #define GENERIC_PMON_CTL_UMASK_MASK     0x0000ff00
37 #define GENERIC_PMON_CTL_EDGE_DET       (1 << 18)
38 #define GENERIC_PMON_CTL_INVERT         (1 << 23)
39 #define GENERIC_PMON_CTL_TRESH_MASK     0xff000000
40 #define GENERIC_PMON_RAW_EVENT_MASK     (GENERIC_PMON_CTL_EV_SEL_MASK | \
41                                          GENERIC_PMON_CTL_UMASK_MASK | \
42                                          GENERIC_PMON_CTL_EDGE_DET | \
43                                          GENERIC_PMON_CTL_INVERT | \
44                                          GENERIC_PMON_CTL_TRESH_MASK)
45
46 #define GENERIC_PMON_BOX_CTL_FRZ        (1 << 0)
47 #define GENERIC_PMON_BOX_CTL_RST_CTRL   (1 << 8)
48 #define GENERIC_PMON_BOX_CTL_RST_CTRS   (1 << 9)
49 #define GENERIC_PMON_BOX_CTL_INT        (GENERIC_PMON_BOX_CTL_RST_CTRL | \
50                                          GENERIC_PMON_BOX_CTL_RST_CTRS)
51
52 enum uncore_access_type {
53         UNCORE_ACCESS_MSR       = 0,
54         UNCORE_ACCESS_MMIO,
55         UNCORE_ACCESS_PCI,
56
57         UNCORE_ACCESS_MAX,
58 };
59
60 struct uncore_global_discovery {
61         union {
62                 u64     table1;
63                 struct {
64                         u64     type : 8,
65                                 stride : 8,
66                                 max_units : 10,
67                                 __reserved_1 : 36,
68                                 access_type : 2;
69                 };
70         };
71
72         u64     ctl;            /* Global Control Address */
73
74         union {
75                 u64     table3;
76                 struct {
77                         u64     status_offset : 8,
78                                 num_status : 16,
79                                 __reserved_2 : 40;
80                 };
81         };
82 };
83
84 struct uncore_unit_discovery {
85         union {
86                 u64     table1;
87                 struct {
88                         u64     num_regs : 8,
89                                 ctl_offset : 8,
90                                 bit_width : 8,
91                                 ctr_offset : 8,
92                                 status_offset : 8,
93                                 __reserved_1 : 22,
94                                 access_type : 2;
95                         };
96                 };
97
98         u64     ctl;            /* Unit Control Address */
99
100         union {
101                 u64     table3;
102                 struct {
103                         u64     box_type : 16,
104                                 box_id : 16,
105                                 __reserved_2 : 32;
106                 };
107         };
108 };
109
110 struct intel_uncore_discovery_type {
111         struct rb_node  node;
112         enum uncore_access_type access_type;
113         u64             box_ctrl;       /* Unit ctrl addr of the first box */
114         u64             *box_ctrl_die;  /* Unit ctrl addr of the first box of each die */
115         u16             type;           /* Type ID of the uncore block */
116         u8              num_counters;
117         u8              counter_width;
118         u8              ctl_offset;     /* Counter Control 0 offset */
119         u8              ctr_offset;     /* Counter 0 offset */
120         u16             num_boxes;      /* number of boxes for the uncore block */
121         unsigned int    *ids;           /* Box IDs */
122         unsigned int    *box_offset;    /* Box offset */
123 };
124
125 bool intel_uncore_has_discovery_tables(void);
126 void intel_uncore_clear_discovery_tables(void);
127 void intel_uncore_generic_uncore_cpu_init(void);
128 int intel_uncore_generic_uncore_pci_init(void);
129 void intel_uncore_generic_uncore_mmio_init(void);
130
131 void intel_generic_uncore_msr_init_box(struct intel_uncore_box *box);
132 void intel_generic_uncore_msr_disable_box(struct intel_uncore_box *box);
133 void intel_generic_uncore_msr_enable_box(struct intel_uncore_box *box);
134
135 void intel_generic_uncore_mmio_init_box(struct intel_uncore_box *box);
136 void intel_generic_uncore_mmio_disable_box(struct intel_uncore_box *box);
137 void intel_generic_uncore_mmio_enable_box(struct intel_uncore_box *box);
138 void intel_generic_uncore_mmio_disable_event(struct intel_uncore_box *box,
139                                              struct perf_event *event);
140 void intel_generic_uncore_mmio_enable_event(struct intel_uncore_box *box,
141                                             struct perf_event *event);
142
143 void intel_generic_uncore_pci_init_box(struct intel_uncore_box *box);
144 void intel_generic_uncore_pci_disable_box(struct intel_uncore_box *box);
145 void intel_generic_uncore_pci_enable_box(struct intel_uncore_box *box);
146 void intel_generic_uncore_pci_disable_event(struct intel_uncore_box *box,
147                                             struct perf_event *event);
148 u64 intel_generic_uncore_pci_read_counter(struct intel_uncore_box *box,
149                                           struct perf_event *event);
150
151 struct intel_uncore_type **
152 intel_uncore_generic_init_uncores(enum uncore_access_type type_id, int num_extra);